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King Snake Size, Habitat & Behavior

Instructor Jose Antonio Hernandez Castillo

Jose Antonio is a Civil Engineer with a Master's Degree in Environmental Engineering and currently studying his doctorate. He has taught subjets like microbiology, physics, chemistry, statistics, biology, calculus and math for college and high school for over 6 years.

Explore kingsnakes. Learn the definition of a kingsnake and discover what a kingsnake looks like. See kingsnake size and understand what kingsnakes eat.

The term kingsnake refers to a group of snakes that live in North America and belong to the Lampropeltis genus; the word Lampropeltis comes from a Greek word meaning ''bright or shiny shield,'' referring to the snake's scales and appearance. This genus belongs to the Colubridae family, a grouping of non-venomous snakes that are not dangerous to humans. These animals are called kingsnakes because they can eat other snake species.

There are 26 kingsnake species, including the California Kingsnake (Lampropeltis californiae) and the milksnake (Lampropeltis triangulum). These kingsnake species have different colors and patterns depending on the species and habitat.


The Prairie Kingsnake is one of the 26 kingsnake species.

A picture of the Prairie Kingsnake


Since numerous species belong to the genus Lampropeltis, the size of kingsnakes can vary. The smallest species can measure from 14 inches (36 cm), and the largest can reach up to 84 inches (213 cm). The species that make up this genus are not generally long compared to other snakes, such as the python, the cobra, or the anaconda. The average size of kingsnakes ranges from 3.3 to 5 feet (100 to 150 cm).

Below are a few examples of different kingsnake sizes:

  • The Eastern milksnake measures between 24 to 36 inches (61 to 91.44 cm) in length
  • The California kingsnake can measure between 39.37 to 47.24 inches( 100 a 120 cm)
  • The longest kingsnake recorded was discovered in California in 2021, measuring 7 feet long (213 cm)

The appearance of kingsnakes can vary depending on the species and their habitat. Kingsnakes are generally colorful snakes with one primary color and vibrant patterns in other colors such as rings, bands, stripes, or spots. The common kingsnake (Lampropeltis getula) is predominantly black and has yellow or white ring-shaped patterns along its body. The California kingsnake is also black and has yellow or white rings all along its body.

Kingsnakes are known to be ophiophagous, which means they eat other snakes. However, they are not limited to just eating snakes. They usually take the opportunity to catch whatever they can eat, including birds, rodents, or other reptiles such as lizards. Unlike venomous snakes, the kingsnakes use constriction to capture and kill their prey. First, with a bite, they catch the prey, and then they use their body to squeeze the prey's body to suffocate it.

A fascinating feature of kingsnakes is that some have developed immunity to the venom of other snakes. For example, the common kingsnake is immune to rattlesnake venom, meaning that the list of snakes it can eat is extensive.

Kingsnakes are mainly found in North America: in the United States and Mexico. However, kingsnakes have a wide variety of habitats. The California kingsnake lives in forests and deserts of the Mexican state of Baja California and the states of Nevada, Utah, Colorado, and Arizona. They usually like to climb trees to protect themselves from predators.

Most kingsnakes have nocturnal habits. They seek to get their food and move in the shelter of darkness to avoid possible predators. But there are also diurnal kingsnake species that take advantage of the mornings to move or hunt, avoiding the warmer climates.

Another interesting fact is that kingsnakes hibernate during the winter. These snakes look for holes in caves, rocks, or trunks to take refuge. In winter, they can be found sheltered in groups.

There are many similarities and differences between the kingsnake and the rattlesnake. Both are similar in size since a rattlesnake can measure between 2 and 7 feet (61 to 213 cm). In appearance, the kingsnake has a variety of colors and patterns, while the rattlesnake is mainly brown, black, and gold. The pattern in the kingsnake skin can be of different shapes, while the one in rattlesnakes is diamond-shaped. They both live in North America and Mexico, in forests or deserts.

One noteworthy difference between rattlesnakes and kingsnakes is how they have their younglings. While kingsnakes lay eggs, rattlesnakes are ovoviviparous; rattlesnake younglings hatch from eggs inside the mother's body, and the mother gives birth to the younglings.

The phrase kingsnake refers to a group of snakes that belong to the Lampropeltis genus and the Colubridae family. This genus groups 26 different species of kingsnakes. The average size of a kingsnake ranges from 3.3 to 5 feet (100 to 150 cm). Their appearance varies according to the species and habitat. Many of them are colorful and have vibrant patterns. Many of them are identified by their characteristic color; for example, the milksnake is similar to the coral snake but has a different order of colors. Kingsnakes are ophiophagous animals. This means that they eat other snakes. But they also eat rodents, birds, and lizards.

Frequently Asked Questions

Why are they called king snakes?

Kingsnakes received their name because they can kill and eat other snake species. For example, they can kill and eat a rattlesnake since they are immune to its venom.

How venomous is a king snake?

Kingsnakes are not venomous snakes or poisonous snakes. Unlike rattlesnakes or coral snakes, king snakes kill their prey using constriction. Kingsnakes can bite but do not inject venom through their fangs.

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